/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import { Injectable } from '@angular/core';

@Injectable({ providedIn: 'root' })
export class SpColorizationService {
    generateContrastColor(bgColor: string) {
        const color =
            bgColor.charAt(0) === '#' ? bgColor.substring(1, 7) : bgColor;
        const r = parseInt(color.substring(0, 2), 16);
        const g = parseInt(color.substring(2, 4), 16);
        const b = parseInt(color.substring(4, 6), 16);
        return r * 0.299 + g * 0.587 + b * 0.114 > 186 ? '#000' : '#FFF';
    }
}
